A balanced and adequately planned diet is necessary to stay healthy. Vegetarianism does not lead to any health issues.
Vegetarianism helps a person to have a lower cholesterol level, weight, blood pressure, and a reduced risk of developing cardiovascular diseases. It also helps in preventing chronic diseases like diabetes and cancer and prolonging longevity. Vegetarians benefit from their diet as compared to other diets. They consume less saturated fat, cholesterol, and they are likely to have lower total and LDL (bad) cholesterol, blood pressure, and lower body mass index (BMI).
According to a WebMD report, the nutrients of concern in vegetarians' diets include vitamin B(12), vitamin D, omega-three fatty acids, calcium, iron, zinc, etc. But there still aren't enough data to conclude how a vegetarian diet influences long-term health or affects health. Qi Sun, MD, an assistant professor of nutrition at the Harvard T.H. Chan School of Public Health, says there are potential pitfalls to meatless eating, but nutrition education and using supplements when needed can help people overcome them.
Sun also adds that the benefits of eating plant-based diets, including vegan and vegetarian diets, far exceed small risks in deficiency.
Hence, if the diet is not appropriately planned, it is not healthy to follow, be it a vegetarian or non-vegetarian diet.